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can't read numbers on 90 something Yamaha 40 hp and Son had high temp alarm sound off at the lake Friday. In NY for the summer and all info on motor is at home in file cab in Florida. Going to call local shop Monday and have them change water pump/impellar if they can do it within a week. If not any ideas on how to find out year so I can order new impellar and do it ourself. Video looks pretty easy.
Any shop can cross the motor serial number to know the year model. Or just google the manufacturer website and that should cross it as well.
Jigflinger is right ,serial number reveals the year and other info.Changing the impeller is not hard.Suggest buying the "kit" as that gives you the impeller,seals,and housing--everything you need .The guys on CDC can nurse you through doing the job if you want.....Youtube videos help also..There are parts supply houses that can be helpful .Many on the web.an example is one I have used a few times is Marine Parts Plus and there are lots more...
Most have manufacture date on transom bracket and model on other side plates .
Marine Parts Plus has your info. Google them!
I know where the # is located, just can't read it any more. I also have the formula to interpret them for the year. This motor is replacement for the 25 hp mercury that was on it. With it being on a pontoon not much room to get in with magnifying glass to help read #. Thought the motor might have # somewhere else besides the left side looking from behind.
Just checked, your going to need year at least. Part number changes from 91-93 then 94-97. Just slightly but is different. Does your registration on motor not list year or do they not register motors?
Last time it was changed in Florida 3 years ago mechanic just compared old to new and worked great, I have the paperwork with the info but it is at home. Just an excuse but never thought to bring info with me to NY for the summer.
You should be able to do a "pencil rubbing" of the plate to get the information.
place a piece of paper over the label, take a pencil and rub the side of the lead over the label. It should transfer the info to the paper, which you should be able to read. :twocents